overflow flag उदाहरण वाक्य

Therefore, it is useful to check the overflow flag after adding or subtracting numbers that are represented in two's complement form ( i . e . they are considered signed numbers ).
The overflow flag is thus set when the most significant bit ( here considered the sign bit ) is changed by adding two numbers with the same sign ( or subtracting two numbers with opposite signs ).
In many processor architectures, the overflow flag is cleared by bitwise operations ( and, or, xor, not ), possibly including shifts and rotates, but it may also be left undefined by these.
As the sign bit is the same as the most significant bit of a number " considered " unsigned, the overflow flag is " meaningless " and normally ignored when unsigned numbers are added or subtracted.
When the clock pulse occurs, the sum will be transferred to storage and, if the resulting sum is too large ( i . e ., it is larger than the ALU's output word size ), an arithmetic overflow flag will be set.

In computer processors, the "'overflow flag "'( sometimes called V flag ) is usually a single bit in a system status register used to indicate when an arithmetic overflow has occurred in an operation, indicating that the signed two's-complement result would not fit in the number of bits used for the operation ( the ALU width ).